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Titolo:
A MODEL INVESTIGATION OF SUMMERTIME DIURNAL OZONE BEHAVIOR IN RURAL MOUNTAINOUS LOCATIONS
Autore:
ZAVERI RA; SAYLOR RD; PETERS LK; MCNIDER R; SONG A;
Indirizzi:
VIRGINIA POLYTECH INST & STATE UNIV,DEPT CHEM ENGN BLACKSBURG VA 24061 BATTELLE MEM INST,PACIFIC NW LABS,CTR EARTH & ENVIRONM SCI RICHLAND WA 99352 UNIV ALABAMA,EARTH SYST SCI LAB HUNTSVILLE AL 35899
Titolo Testata:
Atmospheric environment
fascicolo: 9, volume: 29, anno: 1995,
pagine: 1043 - 1065
SICI:
1352-2310(1995)29:9<1043:AMIOSD>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
PHOTOCHEMICAL OXIDANT MODEL; PLANETARY BOUNDARY-LAYER; SCALE ACID DEPOSITION; DRY DEPOSITION; HIGH-ELEVATION; SURFACE OZONE; FOREST; URBAN; SIMULATION; EXPOSURE;
Keywords:
PHOTOCHEMISTRY; OZONE EXPOSURE; HIGH-ELEVATION; NUMERICAL SIMULATIONS;
Tipo documento:
Article
Natura:
Periodico
Citazioni:
37
Recensione:
Indirizzi per estratti:
Citazione:
R.A. Zaveri et al., "A MODEL INVESTIGATION OF SUMMERTIME DIURNAL OZONE BEHAVIOR IN RURAL MOUNTAINOUS LOCATIONS", Atmospheric environment, 29(9), 1995, pp. 1043-1065

Abstract

The STEM-II pollutant transport, transformation, and deposition modelhas been used to simulate diurnal patterns of surface ozone concentration at idealized high-elevation mountaintop locations and low-elevation plains and valley sites. Two-dimensional hydrostatic mesoscale simulations, initialized with atmospheric conditions representative of sunrise over the southern Appalachians on 19 June, were used to generate meteorological data to drive STEM-II simulations. Sensitivity of surface ozone concentrations has been investigated against input initial and background vertical profiles, synoptic wind speed,, photochemistry, and surface removal. The model reproduced typical surface ozone concentration diurnal patterns observed at several high- and low-elevation sites in the United States and central Europe. Results indicate that the nighttime high ozone concentrations at high-elevation mountainous locations are primarily due to the occurrence of local topographically induced wind systems which transport ozone-rich air from aloft down mountain slopes. The simulations indicate that in some situations higher ozone concentrations may also be observed at mountaintop locations dueto transport of residual ozone-rich air masses above the nocturnal boundary layer to high-elevation locations.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 06/07/20 alle ore 07:52:08